GPU Comparison
RADEON
AMD Radeon RX 640 OEM
CORE STATE
Polaris 23
VRAM
4 GB
CLOCK SPEED
—
TDP
50 W
BUS WIDTH
128 bit
ARCHITECTURE
GCN 4.0
PROCESS
14 nm
LAUNCH DATE
2020
VS
GEFORCE
GRID M6-8Q
CORE STATE
GM204
VRAM
8 GB
CLOCK SPEED
—
TDP
100 W
BUS WIDTH
256 bit
ARCHITECTURE
Maxwell 2.0
PROCESS
28 nm
LAUNCH DATE
2015
DETAILED SPECIFICATIONS
SPECIFICATION
RX 640 OEM
GRID M6-8Q
Core Specs
Shading Units
640
1,536
+140.0%
Shaders
640
1,536
+140.0%
TMUs
40
96
+140.0%
ROPs
16
64
+300.0%
Compute Units
10
—
Clocks
GPU Clock
1295 MHz
722 MHz
Memory Clock
1500 MHz
6 Gbps effective
1253 MHz
5 Gbps effective
Memory
Memory Size
4 GB
8 GB
VRAM (MB)
4,096
8,192
+100.0%
Memory Type
GDDR5
GDDR5
Memory Bus
128 bit
256 bit
Bandwidth
96.00 GB/s
160.4 GB/s
Cache
L1 Cache
16 KB (per CU)
48 KB (per SMM)
L2 Cache
512 KB
2 MB
Performance
Pixel Rate
20.72 GPixel/s
46.21 GPixel/s
Texture Rate
51.80 GTexel/s
69.31 GTexel/s
FP32 (TFLOPS)
1.658 TFLOPS
2.218 TFLOPS
FP64 (TFLOPS)
103.6 GFLOPS (1:16)
69.31 GFLOPS (1:32)
FP16 (TFLOPS)
1.658 TFLOPS (1:1)
—
Power
TDP
50 W
100 W
TDP (W)
50
100
+100.0%
Suggested PSU
250 W
300 W
Power Connectors
None
None
Architecture
Architecture
GCN 4.0
Maxwell 2.0
GPU Name
Polaris 23
GM204
Generation
Polaris
(RX 600)
GRID
(Mx)
Process Size
14 nm
28 nm
Transistors
2,200 million
5,200 million
Die Size
103 mm²
398 mm²
Foundry
GlobalFoundries
TSMC
Density
21.4M / mm²
13.1M / mm²
API Support
DirectX
12 (12_0)
12 (12_1)
OpenGL
4.6
4.6
Vulkan
1.3
1.4
OpenCL
2.1
3.0
CUDA
—
5.2
Shader Model
6.7
6.8
Physical
Slot Width
Single-slot
MXM Module
Outputs
1x DisplayPort 1.4a2x mini-DisplayPort 1.4a
No outputs
Bus Interface
PCIe 3.0 x8
PCIe 3.0 x16
Other
Production
End-of-life
End-of-life
Predecessor
Polaris
—
Successor
Vega
—